package com.movecar.utils;

import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;

public class FileProvider {

	public static File getNewJpegFile() throws IOException {
		final File directory = new File(Environment.getExternalStorageDirectory() + "/Pictures/");
		if (!directory.exists()) {
			directory.mkdir();
		}

		final File file = new File(directory + "/MoveCar_"
				+ new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.CHINA).format(new Date()) + ".jpg");
		file.createNewFile();
		return file;
	}

	public static File getNewZipFile() throws IOException {
		final File directory = new File(Environment.getExternalStorageDirectory() + "/Pictures/");
		if (!directory.exists()) {
			directory.mkdir();
		}

		final File file = new File(directory + "/MoveCar_"
				+ new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.CHINA).format(new Date()) + ".zip");
		file.createNewFile();
		return file;
	}

	public static File getNewTemporaryFile() throws IOException {
		return File.createTempFile("MoveCar", null);
	}

	/**
	 * 获取图片文件
	 * 
	 * @param context
	 * @param uri
	 * @return
	 */
	public static File getFileByUri(final Context context, final Uri uri) {
		final String scheme = uri.getScheme();
		final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;

		// DocumentProvider
		if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
			// ExternalStorageProvider
			if (isExternalStorageDocument(uri)) {
				final String docId = DocumentsContract.getDocumentId(uri);
				final String[] split = docId.split(":");
				final String type = split[0];

				if ("primary".equalsIgnoreCase(type)) {
					return new File(Environment.getExternalStorageDirectory() + "/" + split[1]);
				}

				// TODO handle non-primary volumes
			}
			// DownloadsProvider
			else if (isDownloadsDocument(uri)) {

				final String id = DocumentsContract.getDocumentId(uri);
				final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"),
						Long.valueOf(id));
				return new File(getDataColumn(context, contentUri, null, null));
			}
			// MediaProvider
			else if (isMediaDocument(uri)) {
				final String docId = DocumentsContract.getDocumentId(uri);
				final String[] split = docId.split(":");
				final String type = split[0];

				Uri contentUri = null;
				if ("image".equals(type)) {
					contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
				} else if ("video".equals(type)) {
					contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
				} else if ("audio".equals(type)) {
					contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
				}

				final String selection = "_id=?";
				final String[] selectionArgs = new String[] { split[1] };
				return new File(getDataColumn(context, contentUri, selection, selectionArgs));
			}
		}
		// MediaStore (and general)
		else if ("content".equalsIgnoreCase(uri.getScheme())) {
			String[] proj = { MediaStore.Images.Media.DATA };
			final Cursor cursor = context.getContentResolver().query(uri, proj, null, null, null);
			final int columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
			// MediaColumns.DATA
			cursor.moveToFirst();
			return new File(cursor.getString(columnIndex));
		}
		// File
		else if ("file".equalsIgnoreCase(uri.getScheme())) {

			return new File(uri.getPath());
		}

		return null;

	}

	/**
	 * Get the value of the data column for this Uri. This is useful for
	 * MediaStore Uris, and other file-based ContentProviders.
	 * 
	 * @param context
	 *            The context.
	 * @param uri
	 *            The Uri to query.
	 * @param selection
	 *            (Optional) Filter used in the query.
	 * @param selectionArgs
	 *            (Optional) Selection arguments used in the query.
	 * @return The value of the _data column, which is typically a file path.
	 */
	public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {

		Cursor cursor = null;
		final String column = "_data";
		final String[] projection = { column };

		try {
			cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
			if (cursor != null && cursor.moveToFirst()) {
				final int index = cursor.getColumnIndexOrThrow(column);
				return cursor.getString(index);
			}
		} finally {
			if (cursor != null)
				cursor.close();
		}
		return null;
	}

	/**
	 * @param uri
	 *            The Uri to check.
	 * @return Whether the Uri authority is ExternalStorageProvider.
	 */
	public static boolean isExternalStorageDocument(Uri uri) {
		return "com.android.externalstorage.documents".equals(uri.getAuthority());
	}

	/**
	 * @param uri
	 *            The Uri to check.
	 * @return Whether the Uri authority is DownloadsProvider.
	 */
	public static boolean isDownloadsDocument(Uri uri) {
		return "com.android.providers.downloads.documents".equals(uri.getAuthority());
	}

	/**
	 * @param uri
	 *            The Uri to check.
	 * @return Whether the Uri authority is MediaProvider.
	 */
	public static boolean isMediaDocument(Uri uri) {
		return "com.android.providers.media.documents".equals(uri.getAuthority());
	}

	/**
	 * @param uri
	 *            The Uri to check.
	 * @return Whether the Uri authority is Google Photos.
	 */
	public static boolean isGooglePhotosUri(Uri uri) {
		return "com.google.android.apps.photos.content".equals(uri.getAuthority());
	}
}
